﻿/* 
* Copyright (c) 2010, The University of Texas at Austin
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, 
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, 
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, 
* this list of conditions and the following disclaimer in the documentation and/or other materials 
* provided with the distribution.
*
* Neither the name of The University of Texas at Austin nor the names of its contributors may be 
* used to endorse or promote products derived from this software without specific prior written 
* permission.
* 
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR 
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
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* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

using System.Windows;
using System.Windows.Input;
using Bio.Views.Structure.Editor.Internal.Selection;

namespace Bio.Views.Structure.Editor.Internal.Tools
{
    public class StructureElementSelectionTool : SecondaryStructureDrawingTool
    {
        public StructureElementSelectionTool() 
        {
            Icon = "S";
            Message = null;
            ToolTip = "Selection Tool; Select a Structure Element of type determined by the Selection Mode";
        }

        public override void OnSelectionModeChanged()
        {
            if(IsActive)
                SetMessage();
        }

        protected override void OnActiveStateChanged()
        {
            if (!IsActive)
                Message = null;
            else
                SetMessage();
        }

        protected override void DrawingMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            Point clickLocation = e.GetPosition(Drawing);
            Drawing.TryHandleSelection(clickLocation);
        }

        private static string SELECTION_TOOL_TITLE = "Selection Tool";

        private void SetMessage()
        {
            if (Drawing.SelectionMode == StructureElementSelectionMode.None)
            {
                Message = string.Format("{0}: Must set the Selection Mode to something other than None to use this Tool", SELECTION_TOOL_TITLE);
            }
            else if (Drawing.SelectionMode == StructureElementSelectionMode.Range)
            {
                Message = string.Format("{0}: For Range Selection Mode, select two different Nucleotides to set a Range", SELECTION_TOOL_TITLE);
            }
            else if (Drawing.SelectionMode == StructureElementSelectionMode.Domain)
            {
                Message = string.Format("{0}: For Domain Selection Mode, select a Helix to set a Range", SELECTION_TOOL_TITLE);
            }
            else { Message = SELECTION_TOOL_TITLE; }
        }
    }
}
